Home / 86,942.64-119,981.34-51,134.16

Finding the Fourth Proportional to 86,942.64, 119,981.34 and 51,134.16

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Solution

The fourth proportional to 86,942.64, 119,981.34 and 51,134.16 is: 70,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,942.64 : 119,981.34 = 51,134.16 : x
  2. Step 2: Convert to fraction form
    86,942.64/119,981.34 = 51,134.16/x
  3. Step 3: Cross multiply
    86,942.64x = 119,981.34 × 51,134.16
  4. Step 4: Simplify right side
    86,942.64x = 6,135,145,036.57
  5. Step 5: Solve for x
    x = 6,135,145,036.57/86,942.64
  6. Step 6: Final answer
    x = 70,565.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.